<template>
  <div style="position: relative">
    <div class="verify-img-out">
      <div
        class="verify-img-panel"
        :style="{
          width: setSize.imgWidth,
          height: setSize.imgHeight,
          'background-size': setSize.imgWidth + ' ' + setSize.imgHeight,
          'margin-bottom': vSpace + 'px',
        }"
      >
        <div class="verify-refresh" style="z-index: 3" @click="refresh" v-show="showRefresh">
          <i class="iconfont icon-refresh"></i>
        </div>
        <img
          :src="'data:image/png;base64,' + pointBackImgBase"
          ref="canvas"
          alt=""
          style="width: 100%; height: 100%; display: block"
          @click="bindingClick ? canvasClick($event) : undefined"
        />

        <div
          v-for="(tempPoint, index) in tempPoints"
          :key="index"
          class="point-area"
          :style="{
            'background-color': '#1abd6c',
            color: '#fff',
            'z-index': 9999,
            width: '20px',
            height: '20px',
            'text-align': 'center',
            'line-height': '20px',
            'border-radius': '50%',
            position: 'absolute',
            top: parseInt(tempPoint.y - 10) + 'px',
            left: parseInt(tempPoint.x - 10) + 'px',
          }"
        >
          {{ index + 1 }}
        </div>
      </div>
    </div>
    <!-- 'height': this.barSize.height, -->
    <div
      class="verify-bar-area"
      :style="{
        width: setSize.imgWidth,
        color: this.barAreaColor,
        'border-color': this.barAreaBorderColor,
        'line-height': this.barSize.height,
      }"
    >
      <span class="verify-msg">{{ text }}</span>
    </div>
  </div>
</template>
<script type="text/babel">
/**
 * VerifyPoints
 * @description 点选
 * */
import { resetSize /* , _code_chars, _code_color1, _code_color2*/ } from './../utils/util';
import { aesEncrypt } from './../utils/ase';
// import { postImgCode, reqCheck } from '@/api/userCenter';
import { onMounted, reactive, ref, nextTick, toRefs, getCurrentInstance } from 'vue';
export default {
  name: 'VerifyPoints',
  props: {
    // 弹出式pop，固定fixed
    mode: {
      type: String,
      default: 'fixed',
    },
    captchaType: {
      type: String,
    },
    // 间隔
    vSpace: {
      type: Number,
      default: 5,
    },
    imgSize: {
      type: Object,
      default() {
        return {
          width: '310px',
          height: '155px',
        };
      },
    },
    barSize: {
      type: Object,
      default() {
        return {
          width: '310px',
          height: '40px',
        };
      },
    },
  },
  setup(props /* , context*/) {
    const { mode, captchaType /* , vSpace, imgSize, barSize*/ } = toRefs(props);
    const { proxy } = getCurrentInstance();
    let secretKey = ref(''); // 后端返回的ase加密秘钥
    let checkNum = ref(3); // 默认需要点击的字数
    let fontPos = reactive([]); // 选中的坐标信息
    let checkPosArr = reactive([]); // 用户点击的坐标
    let num = ref(1); // 点击的记数
    let pointBackImgBase = ref(''); // 后端获取到的背景图片
    let poinTextList = reactive([]); // 后端返回的点击字体顺序
    let backToken = ref(''); // 后端返回的token值
    let setSize = reactive({
      imgHeight: 0,
      imgWidth: 0,
      barHeight: 0,
      barWidth: 0,
    });
    let tempPoints = reactive([]);
    let text = ref('');
    let barAreaColor = ref(undefined);
    let barAreaBorderColor = ref(undefined);
    let showRefresh = ref(true);
    let bindingClick = ref(true);

    const init = () => {
      // 加载页面
      fontPos.splice(0, fontPos.length);
      checkPosArr.splice(0, checkPosArr.length);
      num.value = 1;
      getPictrue();
      nextTick(() => {
        let { imgHeight, imgWidth, barHeight, barWidth } = resetSize(proxy);
        setSize.imgHeight = imgHeight;
        setSize.imgWidth = imgWidth;
        setSize.barHeight = barHeight;
        setSize.barWidth = barWidth;
        proxy.$parent.$emit('ready', proxy);
      });
    };
    onMounted(() => {
      // 禁止拖拽
      init();
      proxy.$el.onselectstart = function () {
        return false;
      };
    });
    const canvas = ref(null);
    const canvasClick = e => {
      checkPosArr.push(getMousePos(canvas, e));
      if (num.value == checkNum.value) {
        num.value = createPoint(getMousePos(canvas, e));
        // 按比例转换坐标值
        let arr = pointTransfrom(checkPosArr, setSize);
        checkPosArr.length = 0;
        checkPosArr.push(...arr);
        // 等创建坐标执行完
        setTimeout(() => {
          // var flag = this.comparePos(this.fontPos, this.checkPosArr);
          // 发送后端请求
          let captchaVerification = secretKey.value
            ? aesEncrypt(backToken.value + '---' + JSON.stringify(checkPosArr), secretKey.value)
            : backToken.value + '---' + JSON.stringify(checkPosArr);
          let data = {
            captchaType: captchaType.value,
            pointJson: secretKey.value
              ? aesEncrypt(JSON.stringify(checkPosArr), secretKey.value)
              : JSON.stringify(checkPosArr),
            token: backToken.value,
          };
          // reqCheck(data).then(res => {
          //   res = res.data;
          //   if (res.repCode == '0000') {
          //     barAreaColor.value = '#4cae4c';
          //     barAreaBorderColor.value = '#5cb85c';
          //     text.value = '验证成功';
          //     bindingClick.value = false;
          //     if (mode.value == 'pop') {
          //       setTimeout(() => {
          //         proxy.$parent.clickShow = false;
          //         refresh();
          //       }, 1500);
          //     }
          //     proxy.$parent.$emit('success', { captchaVerification });
          //   } else {
          //     proxy.$parent.$emit('error', proxy);
          //     barAreaColor.value = '#d9534f';
          //     barAreaBorderColor.value = '#d9534f';
          //     text.value = '验证失败';
          //     setTimeout(() => {
          //       refresh();
          //     }, 700);
          //   }
          // });
        }, 400);
      }
      if (num.value < checkNum.value) {
        num.value = createPoint(getMousePos(canvas, e));
      }
    };
    // 获取坐标
    const getMousePos = function (obj, e) {
      let x = e.offsetX;
      let y = e.offsetY;
      return { x, y };
    };
    // 创建坐标点
    const createPoint = function (pos) {
      tempPoints.push(Object.assign({}, pos));
      return num.value + 1;
    };
    const refresh = function () {
      tempPoints.splice(0, tempPoints.length);
      barAreaColor.value = '#000';
      barAreaBorderColor.value = '#ddd';
      bindingClick.value = true;
      fontPos.splice(0, fontPos.length);
      checkPosArr.splice(0, checkPosArr.length);
      num.value = 1;
      getPictrue();
      text.value = '验证失败';
      showRefresh.value = true;
    };

    // 请求背景图片和验证图片
    function getPictrue() {
      let data = {
        captchaType: captchaType.value,
      };
      postImgCode(data).then(res => {
        res = res.data;
        if (res.repCode == '0000') {
          pointBackImgBase.value = res.repData.originalImageBase64;
          backToken.value = res.repData.token;
          secretKey.value = res.repData.secretKey;
          poinTextList.value = res.repData.wordList;
          text.value = '请依次点击【' + poinTextList.value.join(',') + '】';
        } else {
          text.value = res.repMsg;
        }
      });
    }
    // 坐标转换函数
    const pointTransfrom = function (pointArr, imgSize) {
      let newPointArr = pointArr.map(p => {
        let x = Math.round((310 * p.x) / parseInt(imgSize.imgWidth));
        let y = Math.round((155 * p.y) / parseInt(imgSize.imgHeight));
        return { x, y };
      });
      return newPointArr;
    };
    return {
      secretKey,
      checkNum,
      fontPos,
      checkPosArr,
      num,
      pointBackImgBase,
      poinTextList,
      backToken,
      setSize,
      tempPoints,
      text,
      barAreaColor,
      barAreaBorderColor,
      showRefresh,
      bindingClick,
      init,
      canvas,
      canvasClick,
      getMousePos,
      createPoint,
      refresh,
      getPictrue,
      pointTransfrom,
    };
  },
};
</script>
